#!/usr/bin/env bash
echo "this is a learn bash script"
name="my name"
echo ${name}
#for skill in Ada Coffe Action Java; do
#    echo "I am good at ${skill}Script"
#done
your_name="tom"
echo $your_name
your_name="alibaba"
echo $your_name

myUrl="http://www.runoob.com"
echo ${myUrl}
unset myUrl

myUrl="http://www.w3cschool.cc"
readonly myUrl

